Results 11 to 20 of about 3,843,324 (325)

Unmet basic needs negatively affect health-related quality of life in people aging with HIV: results from the Positive Spaces, Healthy Places study

BMC Public Health, 2018
Background Basic needs (e.g., food security and stable housing) are important determinants of health and well-being, yet their impact on health-related quality of life (HRQoL) in the context of HIV and aging has not been systematically investigated ...
Phan Sok, Sandra Gardner, Tsegaye Bekele, Jason Globerman, Mary V. Seeman, Saara Greene, Michael Sobota, Jay J. Koornstra, LaVerne Monette, Keith Hambly, Stephen W. Hwang, James Watson, Glen Walker, Sean B. Rourke, The Positive Spaces, Healthy Places Team   +14 more
doaj   +1 more source

Multiple positive solutions to elliptic boundary blow-up problems [PDF]

, 2016
We prove the existence of multiple positive radial solutions to the sign-indefinite elliptic boundary blow-up problem \[ \left\{\begin{array}{ll} \Delta u + \bigl(a^+(\vert x \vert) - \mu a^-(\vert x \vert)\bigr) g(u) = 0, & \; \vert x \vert < 1, \\ u(x)
Aftalion, Alama, Ambrosetti, Bandle, Bandle, Bandle, Barutello, Berestycki, Bieberbach, Bonheure, Boscaggin, Boscaggin, Boscaggin, Boscaggin, Castro, Conley, Dambrosio, Dambrosio, Dambrosio, Ellero, Feltrin, Feltrin, García-Huidobro, García-Melián, García-Melián, Gaudenzi, Gaudenzi, Girão, Gómez-Reñasco, Keller, López-Gómez, López-Gómez, López-Gómez, López-Gómez, Marcus, Mawhin, Medio, Muldowney, Ni, Osserman, Papini, Papini, Papini, Rademacher, Ważewski   +44 more
core   +2 more sources

Positive solutions for parametric (p(z),q(z))-equations

Open Mathematics, 2020
We consider a parametric elliptic equation driven by the anisotropic (p,q)(p,q)-Laplacian. The reaction is superlinear. We prove a “bifurcation-type” theorem describing the change in the set of positive solutions as the parameter λ\lambda moves in ℝ+=(0,
Gasiński Leszek, Krech Ireneusz, Papageorgiou Nikolaos S.   +2 more
doaj   +1 more source

Normalized solutions to the Schrödinger systems with double critical growth and weakly attractive potentials

Electronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we look for solutions to the following critical Schrödinger system $$\begin{cases} -\Delta u+(V_1+\lambda_1)u=|u|^{2^*-2}u+|u|^{p_1-2}u+\beta r_1|u|^{r_1-2}u|v|^{r_2}&{\rm in}\ \mathbb{R}^N,\\ -\Delta v+(V_2+\lambda_2)v=|v|^{2^*-2}v+|v ...
Lei Long, Xiaojing Feng
doaj   +1 more source

Stability of Antisymmetric Tensor Fields of Chern-Simons Type in AdS Spacetime [PDF]

, 2001
Stability of massive antisymmetric tensor fields with the Chern-Simons type action in anti de Sitter spacetime is studied. It is found that there exists a complete set of solutions whose energy is conserved and positive definite if the mass is positive ...
Abbott, Aharony, Arutyunov, Avis, Breitenlohner, Breitenlohner, Deser, Deser, Deser, DeWolfe, Duff, Gallot, Gibbons, Gubser, Hiroki Hata, Maldacena, Mezincescu, Rubin, Rubin, Salam, Townsend, Townsend, van Nieuwenhuizen, Witten, Yoshiaki Tanii   +24 more
core   +8 more sources

Qualitative analysis of a strongly coupled predator–prey system with modified Holling–Tanner functional response

Boundary Value Problems, 2018
In this paper, we deal with a strong coupled predator–prey model with modified Holling–Tanner functional response under homogeneous Neumann boundary conditions. We mainly discuss the following two problems: (1) stability of the positive constant solution;
Rong Zeng
doaj   +1 more source

New Positive Solutions of Nonlinear Elliptic PDEs

Applied Sciences, 2020
We are concerned with positive solutions of two types of nonlinear elliptic boundary value problems (BVPs). We present conditions for existence, uniqueness and multiple positive solutions of a first type of elliptic BVPs.
Mustafa Inc, Noureddine Bouteraa, Mehmet Ali Akinlar, Slimane Benaicha, Yu-Ming Chu, Gerhard-Wilhelm Weber, Bandar Almohsen   +6 more
doaj   +1 more source

Nature positive farm dams

Agricultural Water Management
Farm dams are a ubiquitous feature in agricultural landscapes worldwide, functioning as a major source of water for livestock or crop irrigation. Their number is increasing rapidly, often dominating the cumulative surface area of inland waters. Unmanaged
K.U.D.N. Hansani, Lukas Schuster, Peter I. Macreadie, Martino E. Malerba   +3 more
doaj   +1 more source

Global potential for seaweed aquaculture on existing offshore infrastructure

Heliyon
Seaweed aquaculture is growing 8.9 % annually to a forecast US$ 22.13 billion in 2024 and has several environmental, economic and social co-benefits. A proposed approach to expanding seaweed aquaculture is to develop offshore aquaculture.
Finnley W.R. Ross, Martino E. Malerba, Peter I. Macreadie   +2 more
doaj   +1 more source

On Positive Solutions for Some Nonlinear Semipositone Elliptic Boundary Value

Nonlinear Analysis, 2006
This study concerns the existence of positive solutions to classes of boundary value problems of the form −∆u = g(x,u), x ∈ Ω, u(x) = 0, x ∈ ∂Ω, where ∆ denote the Laplacian operator, Ω is a smooth bounded domain in RN (N ≥ 2) with ∂Ω of class C2, and ...
G. A. Afrouzi, S. H. Rasouli
doaj   +1 more source